2.6.1 Environment Variables for the Microcode
These environment variables are referred to by the microcode (the
executable C program called mit-scheme under unix, and
mit-scheme.exe on the PC).
     
- MITSCHEME_BAND
- The initial band to be loaded.  The default value is all.com.
     
 
- MITSCHEME_LIBRARY_PATH
- A list of directories.  These directories are searched,
left to right, to find bands and various other files. 
On unix systems the list is colon-separated, with the default
/usr/local/lib/mit-scheme-ARCH. 
On PC systems the list is semicolon-separated with the default
c:\local\mit-scheme.
     
 
- MITSCHEME_CONSTANT
- The size of constant space, in 1024-word blocks; overridden by
--constant.  The default value is computed to be the correct
size for the band being loaded.
     
 
- MITSCHEME_HEAP
- The size of the heap, in 1024-word blocks; overridden by
--heap.  The default value depends on the architecture: for
32-bit machines the default is ‘4096’, and for 64-bit machines
the default is ‘16384’.
     
 
- MITSCHEME_STACK
- The size of the stack, in 1024-word blocks; overridden by
--stack.  The default value is ‘128’.